baber/WOPTO huggingface dataset:
Patent GB-186359-A (GB)
Title: Improvements in and relating to double barrelled machine guns
IPC: F41F1/08
Filed: 1921-03-21
Abstract: 186,359. Gast, C. March 21, 1921. Machine guns.-Relates to double - barrelled machine guns of the kind in which the recoil of one barrel closes the breech, cocks the firing mechanism, and releases the other barrel for forward movement to firing position. According to the invention, the extensions 3 of the barrels 4, shown in plan in Fig. 3, carry dogs 27 which during recoil strike against a lever 24 that engages over pins 6b on each of the breech-blocks 6. When a barrel recoils, its dog 27 rocks the lever 24 about its pivot 34 and closes the breechblock of the other barrel which is meanwhile held in the recoiled position by a catch 23. As the breech-block nears its closed position, a projection 10, Fig. 1, on the firing-pin 9 is arrested for cocking by the sear 13, and subsequently a pin 25 on the lever 24 releases the catch 23 to allow the loaded barrel to return to tiring position. A sliding trigger bar 20 common to both barrels has inclines 20<a> to release in turn the sears 13. For hand loading, the lever 24 is rocked by a handle 26.
Patent GB-405822-A (GB)
Title: Improved means for retarding vehicles travelling on rails
IPC: B61K7/22
Filed: 1933-03-23
Abstract: 405,822. Brakes for rail vehicles. BEELEY, A. J., 15, Oakfield Avenue, Chesterfield, Derbyshire. March 23, 1933, No. 8723. [Class 103 (i).] Means for retarding vehicles running on rails, such as colliery trains, comprises a fluidcontaining chamber a arranged below the level of the rails, and supporting a transverse shaft b carrying one or more arms d projecting in the path of the axles or bodies of the vehicles. The arm d may be forked, one fork e<1> being normally in the path of the vehicle, the other e rising into the path of a second axle when the fork el is pushed over by the first one. The movement of the arms is resisted by a vane f fixed to the shaft b and arranged to move upwards through the fluid when the arm e<1> is pushed by the vehicle. The arms and vane are returned to normal position by a spring h after the passage of the vehicle, a valve g opening during this movement to allow the fluid to pass through the vane. The fluid circulates round the shaft b, its rate of flow being controlled by an adjustable valve i. In another form the arm d is connected by a horizontal link to another arm pivoted outside the casing a, so that after the arm d has been depressed by the vehicle, the axle slides along the link.
Patent GB-810476-A (GB)
Title: Improvements in or relating to fused salt baths
Inventor: WATERFALL FREDERICK DAVID
IPC: C23C8/46
Filed: 1955-03-25
Abstract: Fused salt baths for carburizing steels and alloy steels consist essentially of a halide of Ba and/or Sr, alkali metal halide, and 5 to 30 per cent alkali metal cyanide, together with 0.25 to 5 per cent of Si or Ti or TiO2 or any combination of these among themselves or with SiO2, as regenerator.  The baths are used preferably at 800 DEG to 950 DEG C., and may be replenished with similar compositions.  The regenerator may be in powder form, at least initially, and may be added to the rest of the molten bath in a linen bag.  Powdered graphite may be placed on the bath surface in the normal way.
Patent GB-721479-A (GB)
Title: Aromatic aldehydes and a process of making same
IPC: C07C45/71
Filed: 1952-04-04
Abstract: The invention comprises new ethers of aromatic aldehydes of the general formula R-Yn-O.X.CHO (wherein R represents hydrogen or an aliphatic, alicyclic or aromatic hydrocarbon radical, X represents a substituted or unsubstituted arylene group, n is 1-20, and Y represents <FORM:0721479/IV (b)/1> or <FORM:0721479/IV (b)/2> where R1 is methyl or methoxymethyl, or may be hydrogen when n>1, and the preparation thereof by the action of esters of glycol or polyglycol ethers R.Yn.OH on hydroxy aromatic aldehydes or their alkali salts. The hydroxy aromatic aldehydes may carry halogen, alkyl or alkoxy substituents.  The glycol ether-esters used include benzene-sulphonates, p-toluenesulphonates and halides.  In examples p-hydroxybenzaldehyde is converted into polyglycol ethers in which the OH group is replaced by the following groups:  CH3-(OCH2CH2)n-O-, where n is 1-20, C4H9-(O.CH2.CH2)2-O-, HO-(CH2.CH2O)1-20, H-(OC3H6)1-20-O-, CH3-(OC3H6)1-3-O-, <FORM:0721479/IV (b)/3> and <FORM:0721479/IV (b)/4> other aldehydes converted into similar polyglycol ethers include 1 : 4-hydroxynaphthaldehyde, salicylaldehyde, 2- and 3-chloro-4-hydroxybenzaldehyde, 3 : 5 - dichloro - 4-hydroxybenzaldehyde, and vanillin (metamethoxy - 4 - hydroxybenzaldehyde); iodo- and bromo-substituted aromatic aldehydes are also specified.  Alkyl-, cycloalkyl- and aromatic-ethers of one polyglycol group may be used, in the polyglycol reagent, and these may have mol. weights up to 1450, having 1-20 glycol ether units of the above types.  Specification 709,478 is referred to.
Patent GB-725454-A (GB)
Title: Apparatus for controlling the quenching of coke in a coke-quenching tower
IPC: C10B39/08
Filed: 1953-03-30
Abstract: 725,454. Quenching coke. KOPPERS GES., H. March 30, 1953 [April 7, 1952], No. 8765/53. Class 51 (2). Apparatus for controlling the quenching of coke in a coke quenching tower comprises a water spray system 2 having a supply valve 3 actuated by mechanism 4 which is operated by a solenoid 4a connected to a conductor rail 6 engaged by an arm 7 disposed on the locomotive which pushes the coke car under the quenching tower 1, said locomotive carrying a control unit 8. The locomotive may be driven from a multi-phase power system having conductors R.S. & T., and the control unit 8 comprises a switch box 9 with two press-button switches 9a and 9b, a timing device 10, an auxiliary relay 11, and an indicator lamp 12..As the coke car enters the quenching tower 1, the arm 7. engages the conductor 6 establishing a circuit from the conductor T to the solenoid 4a, the current being sufficient to light the indicating lamp 12 but not to operate the solenoid 4a. When the coke car has entered the quenching tower, the locomotive driver presses switch 9a, energizing the timing relay coil 10a and the auxiliary relay coil 11a, which latter closes the contacts 11b and 11c, short circuiting the switch 9a and the lamp 12. The full potential is now applied to the solenoid 4a causing the mechanism 4 to open the water supply valve 3. After a predetermined time, the timing relay operates, opening the contact 10b to de-energize the relay coils 10a and 11a and the solenoid 4a, thus closing the valve 3. If, after the timing relay has operated, the quenching operation is not complete, the driver can start the cycle of operations again by pressing switch 9a and, during quenching, he can stop operations by pressing switch 9b, thus de-energizing the solenoid 4a and the relay coils 10a and 11a.
Patent GB-609766-A (GB)
Title: Improvements in or relating to a magnetic recorder and reproducer
IPC: G11B27/13
Filed: 1946-03-21
Abstract: 609,766. Wire recording and reproducing apparatus. SCHERBATSKOY, S. A. March 21, 1946, No. 8794. Convention date, March 23, 1945. [Class 40 (ii)] In an apparatus for recording and reproducing sound, in which magnetic wire or tape is used, the spools 25, 26 are carried in a detachable magazine 11 which also contains the transducer 31, the wiping head 30, a driving element 28 coupled to a reversible motor 32 in the main body 10 of the apparatus controlled by a reversing switch 37, whereby the medium is drawn from one spool to the other and vice versa, and an indicating device 16 driven by the shaft 29 of said driving element 28 which interrupts the current to the motor 32 when a given length of the medium 27 has passed from one spool to the other. A helical spring 50 is provided between the spools 25, 26 or the shaft 45 and coupled to them and tensioned so that the medium 27 is maintained in tension over the driving element 28. The shaft 45 is mounted at suoh an angle to the shaft 29 that the medium 27 is fed on to the oentre of the spools 25, 26. Details are given, Figs. 4a and 4b (not shown) of a cam mechanism which slowly moves the shaft 45, and the spools 25, 26 thereon, to and fro in an axial direction to enable the medium 27 to be wound evenly on the spools 25, 26.
Patent GB-1488257-A (GB)
Title: Vehicle cooling installations
IPC: B60K11/00
Filed: 1975-02-26
Abstract: 1488257 Vehicle cooling installations COVRAD Ltd 26 Feb 1975 [27 Feb 1974] 8828/74 Heading B7H A vehicle is provided with a cooling installation comprising heat exchanger means 11A, 11B, Fig. 4, situated in a passage 12 through which cooling air is caused to flow as a result of forward movement of the vehicle, the installation further comprising a fan 15 for providing a flow of cooling air through a duct 14 to the heat exchanger means when the vehicle is stationary. As illustrated in Fig. 4, the heat exchanger means includes an engine coolant radiator 11A and a refrigerant heat exchanger 11B. The heat exchanger means may further include an oil cooler. A flap valve 23 may be mounted in the passage 12. In the alternative cooling installation of Fig. 5, a radiator 11C and a refrigerant heat exchanger 11D lie transversely of the vehicle in end-to-end relationship. In a modification, the fan of the cooling installation may be arranged to draw air from the downstream side of the heat exchanger means.
Patent GB-733575-A (GB)
Title: Improvements in fluid-pressure control mechanisms
IPC: F15B5/00
Filed: 1953-03-31
Abstract: 733,575. Fluid-pressure servomotors; valves. SAMSON APPARATEBAU AKT.-GES. March 31, 1953 [April 5, 1952], No. 8949/53. Class 135. Relay means for converting a variable force into a hydraulic or pneumatic pressure which may actuate an indicator, recorder or valve comprises valve members 11, 12 carried by a U- shaped arm 13, Fig. 1, a T-shaped arm (not shown), or a straight arm 20, Fig. 4, and urged towards inlet and outlet nozzles 9, 10 by a spring 16 or 21. The arm 13 or 20 is rocked about one nozzle to open the other by a spring-link connection 19 with a rod 4, 5 to which the variable force is applied. The resultant fluid pressure in the chamber 6 of the relay acts on a diaphragm 3 in opposition to the force on the rod 4, 5 and passes to the controlled valve or indicator &c. via a pipe 25. The leverage on the arms 13, 20 may be varied by altering the length of members 18. Lateral displacement with respect to the nozzles 9, 10 of the arm 13 is prevented by a leaf spring 17. The rod 4, 5 may be connected to a float to respond to liquid level, to a differential-pressure responsive diaphragm connected to two points of a Venturi, or to a pressure or temperature-responsive bellows. Specification 733,574 is referred to.
Patent GB-736045-A (GB)
Title: Improvements in and relating to driving belts for machinery
IPC: F16G5/18
Filed: 1953-04-02
Abstract: 736,045. Driving belts. WHITTLE, O. L. April 2, 1954 [April 2, 1953], No. 9134/53. Class 80 (1). In a linked metallic V-belt comprising a series of driving members and connecting members pivotally coupled together, each driving member comprises two sides 6 which are secured to two ends 7 to form a rectangular frame, the ends 7 being inclined to mate with the pulley and carrying friction material 9, if desired, while each of the connecting members 10 comprises two U-shaped halves held together by nuts and bolts 11, semi-circular bearing members 12 of metallic or non-metallic'self-lubricating material being inserted between the driving and the connecting members. The members 12 may be loose or may be secured to the sides 6. In the wide belt shown two connecting members 10 are provided for each side 6. In a modification showing a narrower belt only one connecting member is provided for each side. The driving members may be built up, or may be made by pressing or stamping, or by cutting off lengths of rectangular tube which are machined or built up to have inclined end walls. Brass may be used for small belts. Where steel is used the pulleyengaging surfaces may comprise a non-ferrous metal or a friction material.
Patent GB-273804-A (GB)
Title: Improvements relating to centrifugal and like pumps
IPC: F04D1/06
Filed: 1926-04-07
Abstract: 273,804. Mather & Platt, Ltd., and Pennington, R. April 7, 1926. Multi-stage centrifugal pumps consist of a number of stages with diffusers and a number of stages without diffusers, and these are so arranged that the last stage on the pressure side is a diffuser stage. In the form shown in Fig. 1, the non-diffuser stages a, b are arranged alternately with the diffuser stages c, d. In one modification the non-diffuser stages are at the suction end and the diffuser stages at the discharge end, while in another modification the non- diffuser stages occupy the intermediate portion of the pump.
Patent GB-1284713-A (GB)
Title: Improvements in or relating to presses
Inventor: DAVIDSON MAXWELL WINGATE
IPC: B30B9/22
Filed: 1968-04-30
Abstract: 1284713 Press filter MAXWELL DAVIDSON Ltd 29 July 1969 [30 April 1968] 9215/72 Divided out of 1284712 Heading B1D [Also in Division B5] The subject matter is as disclosed in Specification 1284712 but the claims differ.
Patent GB-1468235-A (GB)
Title: Manufacture of an anhydrite composition for modifying the properties of hydraulic cement
IPC: C04B7/02
Filed: 1974-03-01
Abstract: 1468235 Anhydrate compositions; cement compositions NIHON HARDON KOGYO KK 1 March 1974 [1 March 1973] 9355/74 Headings C1A and C1H An anhydrate composition for modifying the properties of hydraulic cement is made by burning at 400-1000 C. a mixture of (a) gypsum (CaSO 4 .2H 2 O) or another substance which forms anhydrous CaSO 4  on burning (e.g. CaSO 4 .¢H 2 O) and (b) at least one of MgSO 4 .7H 2 O, Na 2 B 2 O 7 .- 10H 2 O, ZnO, CaHPO 4 , ZrO(NO 3 ) 2 , PbO, Cr 2 O 3 , MnO 2 , CaF 2 , and Fe 2 O 3 . The proportion of (b) is suitably 1-4 wt. per cent. The resulting composition may be added to a hydraulic cement containing CaO.Al 2 O 3  and/or CaO.SiO 2 , to gypsum or to other substances which form CaSO 4  on burning, in an amount of, e.g. 5%. Chelating agents for Ca ions may also be added. The effect of the addition is to extend workability life and control setting time.
Patent GB-1490825-A (GB)
Title: Adjustable chair
IPC: A47C1/022
Filed: 1976-03-09
Abstract: 1490825 Reclining chairs; Pillows PIAO KIANG 9 March 1976 09371/76 Headings A4J and A4M  An adjustable chair has pivotally inter-connected seat and backrests S, B slidably supported on each side of the chair frame A by rollers Rf, Rb and Rm, the seat and backrests being held in the upright sitting position by a leaf spring Se which releasably holds the roller Rb in one end of a track Tb on which the roller Rb rides. The chair may be used in conjunction with an ottoman O5 provided with a seat cushion frame supported on a base in one of two positions. A pillow comprising a rest Pi connected to a counterweight Cw by a length of fabric Pa may be provided, the counterweight being received in a pocket Pk on the rear of the backrest.
Patent GB-169130-A (GB)
Title: Recording analysing apparatus for the automatic analysis of gases
IPC: G01N7/08
Filed: 1920-05-10
Abstract: 169,130. Krogh, S. A. S., and Pedersen, P. H. May 10, 1920. Gas analysis.-Relates to apparatus for the automatic measurement of each of two or more constituents of a gas mixture, for example, the percentages of carbon dioxide and of carbon monoxide in flue gases &c. Two or more gas-analyzing units, each comprising a " first " measuring-vessel, an absorber, and a " second " measuring- vessel, are connected in series, and the second and subsequent " first " measuring vessels are adapted to restore the original volume of the sample by the addition of air to the indrawn gas; by such an arrangement direct readings in percentages and of reasonable accuracy are obtained. In the apparatus shown, pipettes 8, 63 represent the " first " measuring-vessels; pipettes 20, 71, the absorbers-in the case of flue gases, both would be arranged to absorb carbon dioxide; and recording-bells 33, 74, the " second " measuring- vessels. A sample of gas is drawn into the pipette 8 by the fall of liquid therein, and subsequently as the liquid piston rises, is forced into the absorber 20, from which unabsorbed gas pasees to the recording-bell 33. When the liquid piston again falls, a definite quantitv of the residual gas is drawn from the bell 33 into the pipette 63 and at the same time a quantity of air admitted through an adjustable inlet pipe 66 admixes with the sample and restores the latter to its original volume; on subsequent rise of the liquid, the sample entrapped above the end of the pipe 67 is forced through a chamber 68 containing an electrically-heated element 69 bv means of which the carbon monoxide and air are caused to combine. then into the second absorber 71, residual gas eventually passing into the recording-bell 74. The recording-devices 42, 77 of the carbon dioxide and carbon monoxides recorders. 33, 74 act on the same recording-drum 43. The recording-devices may be of any construction, for example, as described in Specification 167,824, and may be actuated as described in this Specification by the rise and fall of a vessel 9 which is alternately emptied and filled with liquid, and which by means of associated pipes 62, 75 serves to allow the residues of gas in the bells 33, 74 to escape.
Patent GB-526844-A (GB)
Title: Improvements in and relating to bottle washing machines
IPC: B08B9/42
Filed: 1939-03-27
Abstract: 526,844. Conveyers. LARRIEU, H., and ETABLISSEMENTS LARRIEU LA GIRONDINE. March 27, 1939, No. 9504. [Class 78 (i)] In bottle-washing machines of the kind in which the bottles are supported in an inverted position in cups linked together to form a chain conveyer, each cup is formed with a bearing which fits over and pivots on the adjacent cup. Fig. 1 shows two links of such a conveyer chain, each comprising an L-shaped fitting 5, 6 carrying two bottle cups 3 and furnished with the bearing 8 on a downwardly offset part of the arm 5. This bearing is passed over the cup situated at the junction of the arms of the next link. A stud 10 passes through the slot 9 during the assembling process and engages the under side of the bearing to prevent vertical displacement of the links. The stud never reaches the point where it registers with the hole 9 when the apparatus is in use. Various other arrangements of cups on the links are illustrated, including variation in the angle between the arms 5, 6 and in the number of cups carried by the arms.
Patent GB-829133-A (GB)
Title: Improvements in or relating to pumping machines for the manufacture of electric lamps and like devices
Inventor: HASLEGRAVE HAROLD HENRY WILSON
IPC: H01J9/38
Filed: 1957-03-22
Abstract: 829,133. Making electric lamps and like devices. GENERAL ELECTRIC CO. Ltd. June 20, 1958 [March 22, 1957], No. 9504/57. Class 39(2) A machine for exhausting and filling with gas, sealed envelopes, especially electric filament lamps, through a tubulation, comprises a series of heads each supporting a lamp and including a valve biased to closed position from which it is displaced by the insertion of the exhaust tube in the head, means for detecting a lamp with a leaky envelope and means controlled by the detecting means for ejecting such a lamp from the head, whereupon the valve closes, preferably by gravity. The heads may be carried by a continuously moving machine or may be indexed to successive positions. The exhaust tube 13 of the lamp 14 is inserted in a gland 11 carried by an externally threaded body member 7 on which is mounted a threaded cylindrical cap 12 having a thrust bearing 15 so that screwing up of the cap 12 compresses the gland 11 and causes it to grip the tube 13. Insertion of the tube 13 into the gland 11 raises a valve stem 23 sliding in a tube 21 connected to a vacuum pump, upward movement of the stem 23 being limited by a stop 26. A rotatable table carries a series of heads each provided with a gland so that the lamps are successively connected to a vacuum pump via the tubes 21. A leak detector is provided consisting of a closed container divided by a flexible diaphragm into two chambers connected respectively to the vacuum pump and, in turn as the table rotates, to each of the tubes 21. Imbalance between the two sides of the diaphragm operates a micro switch to interpose an arm 31 in the path of an arm 20 on the cap so that rotation of the table causes unscrewing of the cap and release of the tube 11, the valve automatically dropping to close the aperture in the gland 11. To prevent overheating of the exhaust tube during pumping, a cooling chamber 33 is arranged around the tube through which passes a draught of cooling air. On further rotation of the table, the pumping heads are connected to one or more sources of nitrogen for flushing the bulbs. In a modification in which the exhaust tubes are supported with the bulb uppermost, the valve stems are positively biased to closing position and means are provided for releasing the exhaust tube of a leaky bulb from the gland and removing the bulb from the pumping head.
Patent GB-363252-A (GB)
Title: Improvements in or relating to apparatus for gas analysis
IPC: G01N1/00
Filed: 1931-03-28
Abstract: <PICT:0363252/III/1> A portable gas analysis apparatus 6 is provided with a compressed gas reservoir 1 and an ejector 4 by means of which the gas to be tested is drawn through the apparatus.  The rate of flow is indicated by a meter 5 and a three-way cock 8 is provided to enable the flow to be adjusted before the apparatus 6 is brought into use.  The reservoir 1 may contain compressed gas or reagents for generating gas, or it may be charged by means of a hand compressor connected to it.
Patent GB-601379-A (GB)
Title: Improvements in and relating to electric resistance welding devices
IPC: B23K11/26
Filed: 1944-05-18
Abstract: 601,379. Supply systems for resistance welding condenser arrangements. SCIAKY, D. May 18, 1944, No. 9550. Convention date, Jan. 31. [Class 38 (iv)] [Also in Group XXXVII] Single impulses of current for resistance welding are produced by energy storect electromagnetically and prolonged by energy stored electrostatically. Direct current is fed to the primary 30, of the welding transformer, Fig. 1, through an interrupting device wherein the fixed contacts 31 are shunted non-inductively by condensers 45, Fig. 1. When current in the primary circuit reaches a predetermined value, relay 44 operates to close the contactor 62 in the control circuit, Fig. 6, thereby energizing coil 59, which effects the closure of the contactors 58 and 57 and the opening of contactor 56 which de-energizes relay 43 to open contactor 42, Fig. 1. The coil 61 is energized to actuate the movable contact 32 of the interrupting device, whereupon welding current flows in the secondary circuit 27 of the welding transformer and a voltage is produced across the primary circuit which charges condensers 45 to a maximum value. The condensers then discharge in the reverse direction through the primary of the transformer, to supplement the welding impulse, by way of damping resistor 46 which controls the type of discharge while a non-linear resistor .49 protects the primary circuit should it be opened when the electrodes 21 22 are not in contact. The primary current is derived from an A.C. or D.C. source and means are provided whereby the condenser discharge current is prevented from flowing into the supply source. In a preferred arrangement, Fig. 1. rectifying tubes of the ignitron type are rendered conducting by firing rods connected through a contactor 42, and rectifying elements 39 to the plates of the ignitrons. De-energisation of relay 43 upon opening of contactor 56 in the control circuit, Fig. 6, renders the ignitrons non-conducting. Electromagnetic and pneumatic rapid interrupters are described (see Group XXXVII) for opening the condenser short-circuit.